Error in doc

[Nicolas Brunner]

In RADIO - 2.4 GHz radio TXPOWER register say:

"When the radio is operated on 1.2V, the output power is increased by 3 dBm, i.e. if the value -20 is specified, the output power will be set to -17 dBm."

3 dBm should be replaced by 3 dB.

[Karl Ylvisaker]

Hello Nicolas,

Thank you for pointing this out for us, I have created a ticket with our technical writers to have this typo fixed.

Best regards,
Karl

[Nicolas Brunner]

Thank you for the ticket.

Another question about TXPOWER that i found not clearly documented. Is it allowed to use a value that is not enumerated (like 0xF6 = -10dBm) ?

I found also weird to have a deprecated value (Neg30dBm) for a chip that is in his first revision and the description "-40 dBm" doesn't correspond to the name Neg30dBm.

[Karl Ylvisaker]

Nicolas Brunner said:

Another question about TXPOWER that i found not clearly documented. Is it allowed to use a value that is not enumerated (like 0xF6 = -10dBm) ?

That will not work. The available values are as written in the product specification. Please also keep in mind that the radio is only certified for certain values.

Nicolas Brunner said:

I found also weird to have a deprecated value (Neg30dBm) for a chip that is in his first revision and the description "-40 dBm" doesn't correspond to the name Neg30dBm.

I concur that this might seem out of place at first, but it is a reference to the deprecated Whisper mode of the 51 and 52 series.
Please see the reply by my colleague Andreas in this ticket for details about the deprecated whisper mode.

Please do not hesitate to ask if you should encounter other issues or questions in the future.

Best regards,
Karl